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Depression and Heart Failure? Put Down the SSRI

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WHAT’S NEW

Longer study period/different SSRI

The MOOD-HF trial directly addresses the major criticism of the SADHART-CHF trial by conducting the study over a much longer duration (up to 24 mo vs 12 wk). Also, in contrast to SADHART-CHF, this trial studied escitalopram rather than sertraline, because some evidence indicates that escitalopram is superior at treating primary depression.13 Despite these differences, the results of MOOD-HF are consistent with the findings of SADHART-CHF: SSRI treatment for patients with heart failure and depression did not reduce the elevated morbidity and mortality risk seen with these comorbid conditions.

Also consistent with SADHART-CHF findings, participants in both groups in the MOOD-HF trial had partial remission of depressive symptoms over the study period, with no significant difference between those treated with escitalopram versus placebo. Given that this high-quality trial replicated the findings of SADHART-CHF with a longer treatment period and a potentially more effective SSRI, the results of MOOD-HF should put to rest the practice of initiating SSRI treatment in depressed patients with heart failure in an attempt to affect CVD outcomes.

CAVEATS

There are other SSRI fish in the sea

There are other SSRIs, besides escitalopram and sertraline, available for use. However, it is likely that this is a class effect.

Additionally, none of the patients in this trial had severe depression, as their PHQ-9 scores were all below 19. Therefore, it remains to be determined if treating severe depression has an impact on cardiovascular outcomes.

Lastly, and most importantly, this study only looked at initiating SSRIs for depression in the setting of heart failure. The trial did not include patients already taking SSRIs for pre-existing depression. Thus, the results do not imply evidence for discontinuing SSRIs in patients with heart failure.

Treating comorbid depression and CVD to mitigate the elevated risk for adverse clinical outcomes remains nuanced and elusive. The same can be said of non-CVD chronic conditions (eg, diabetes) based on recent systematic reviews.13 In sum, these studies suggest that a traditional screen-and-treat approach using SSRIs for depression treatment to affect chronic disease outcomes (that are likely lifestyle-related) may not be cost-effective or patient-centered.

A recent study showing that cognitive behavioral therapy did improve depression—but not heart failure—among patients with both conditions reaffirms that teasing out the impact of depression on lifestyle behaviors and chronic disease outcomes among multimorbid patients is more complex than previously thought.14 Nevertheless, this area of research should continue to be explored, given the worsened chronic disease outcomes in the presence of depression.

CHALLENGES TO IMPLEMENTATION

Changing the tide can be difficult

As with any behavior change, we expect that it will be a challenge to convince providers to stop initiating SSRI treatment to affect cardiovascular outcomes in patients with depression and heart failure—especially given the body of evidence denoting depression as a risk factor for increased morbidity and mortality in this population.

ACKNOWLEDGEMENT

The PURLs Surveillance System was supported in part by Grant Number UL1RR024999 from the National Center For Research Resources, a Clinical Translational Science Award to the University of Chicago. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Center For Research Resources or the National Institutes of Health.

Copyright © 2017. The Family Physicians Inquiries Network. All rights reserved.

Reprinted with permission from the Family Physicians Inquires Network and The Journal of Family Practice (2017;66[9]:564-567).

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